Wheeled split-trail gun carriage



May 14, 1929.

N. E. METHLIN WHEELED SPLIT TRAIL GUN CARRIAGE Filed July 26, 1928 2 Sheets-Sheet l Patented May 14, 1929.

NICOLAS EIVIILIEN METHLIN, OF- PARIS, FRANCE, ASSIGNOR TO SC I'INEIDER a CIE, F

PARIS, FRANCE, A LIMITED JOINT-STOCK COMPANY OF FRANCE.

WHEELED SPLIT-TRAIL GUN CARRIAGE.

Application filed July 26, 1928, Serial No. 295,546, and in France August 1, 1927.

The present invention relates to a piece of ordnance mounted upon a wheeled split trail carriage of known type in which the two I trails are pivoted to the headplate of the gun f carriage upon which the top carriage carrying-the gun is pivotally mounted, the said head plate being itself pivoted to the axle by 'a' pivot extending at right angles to the latter.

According to the invention an elastic susmeans of a leaf spring pivotally mounted at itscenter, through its clip, about thepivot provided between the head plate and axle, the ends of the said spring being each pivoted about one end of the axis, tothe other arm of which lever is, pivotally connected the corresponding wheel. I

A device permitting this suspension to be 'made inoperative during firing comprises a system of two locking bolts 'displaceable by means of a commontransmission and adapted, as desired, to be made to engage in latch recesses formed upon one of the arms of the rocking levers to which the ends of the leaf spring are pivotally connected.

' y A practical embodiment of the invention is illustrated, by way of example, in the ac companying drawing.

Fig. 1 is a plan View of the carriage with i a part in'section, V

f Fin. 2 is a .ectional elevation takenalong the line 22 in Fig. 1. Fig. 3 is an end elevation ofthe locking device, with a part in section, the members being shown" in the traveling position.

Fig. 4 is a similar sectional elevation show- .ing thelocking bolts engaged in their latch recesses for firing.

Fig. 5 is a section taken along the line 55 in 1. V Y r:

1 'in Fig. 4. 7 e In these figures, A is the head plate of the gun carriage to which the two trails B are cpivotally connected, and which carries the -pivot C for the top carriage D (Figs. 2 and V 5), the said head plate A being itself pivoted in the axle E by means of a pivot A perpen- 'dicularto the latter. The carriage comprises 1 an elastic suspension, provided by a leaf spring "F which is pivoted at its centre about a prolongation A of the pivot- A the 1o pension is provided for such a carriage by 15' to one of the arms of a rocking lever pivoting 6 is a section taken along the line 6-6 I ends 7 of this spring being each pivotally connected by means of a shackle F to one of the arms G of a rocking lever GG pivoting about one end of the' axle, to the other arm G of which lever is pivoted the corre sponding wheel H.

An extremely simple elastic suspension is thus obtained, by means of a leaf spring, by conveniently providing. bearing'points for this spring upon the carriage and trail arrangement on the one handand the wheel arrangement on the other hand, these points of support being secured in a very practical manner by simply extending the pivot provided between the axle arrangement and the head plate and trail arrangement, on the one hand, and on the other hand, by rocking beams or levers to which the Wheels are pivoted.

For firing, the suspension may be rendered inoperative by means of two locking bolts I carried by the axle and adapted to engage in latch recesses 9 formed in projections G on the rocking lever GG These locking.

bolts I may be actuated simultaneously by means of a common transmission means and be constructed for this purpose inthe form of nuts, each guided by means of a key 2' in a corresponding groove formed in a guiding arm J keyed upon the axis E, In each of these bolts forming nuts I is engaged the screw threaded end'K of a shaft K journalled in a. casing Lcarriedby the axle. At the centre of this shaft is keyed a worm wheel K which meshes with a worm M our nalled in the casing Land operated by means of a hand wheel N.

1 Claims .1. A piece of ordnance mounted on a wheeled split trail carriage comprising a top carriage (D) pivotally mounted upon the head plate (A) of the. carriage to which the trails (B, B) are pivotally connected, the top carriage and trail arrangement (A'-BB) being itself pivotally connected to the axle E by a pivot (A perpendicular to the'latter, the carriage being characterized by .an elastic suspension formed by a leaf spring (F) pivoted at -its centre about the pivot (A provided between the trail arrangement and the axle, while its ends (7) about one end on the axle, to the other end axle and adapted to be engaged, by means of r responding Wheel.

of which arm is pivotally connected the cora common transmission, in corresponding 10 latch recesses V (9) formed in the rocking 2. A piece of ordnance according to claim levers to Which the ends of the leaf spring 7 1, comprising a device pennittingthe elastic (F) are pivotally connected. suspension to be rendered inoperative dur- In testimony whereof I have signed this ing' firing, this device being formed by a sysspecification.

tend of two locking bolts (I) carried by the 1 NICOLAS EMILI EN METHLIN. 

